35 	for (idx = 0, class = lock_classes; idx <= max_lock_class_idx;	\
38 static void *l_next(struct seq_file *m, void *v, loff_t *pos)  in l_next()  argument
47 static void *l_start(struct seq_file *m, loff_t *pos)  in l_start()  argument
56 static void l_stop(struct seq_file *m, void *v)  in l_stop()  argument
60 static void print_name(struct seq_file *m, struct lock_class *class)  in print_name()  argument
67 		seq_printf(m, "%s", name);  in print_name()
69 		seq_printf(m, "%s", name);  in print_name()
71 			seq_printf(m, "#%d", class->name_version);  in print_name()
73 			seq_printf(m, "/%d", class->subclass);  in print_name()
77 static int l_show(struct seq_file *m, void *v)  in l_show()  argument
85 		seq_printf(m, "all lock classes:\n");  in l_show()
88 		return 0;  in l_show()
90 	seq_printf(m, "%p", class->key);  in l_show()
92 	seq_printf(m, " OPS:%8ld", debug_class_ops_read(class));  in l_show()
95 		seq_printf(m, " FD:%5ld", lockdep_count_forward_deps(class));  in l_show()
96 		seq_printf(m, " BD:%5ld", lockdep_count_backward_deps(class));  in l_show()
99 		seq_printf(m, " %s", usage);  in l_show()
102 	seq_printf(m, ": ");  in l_show()
103 	print_name(m, class);  in l_show()
104 	seq_puts(m, "\n");  in l_show()
109 				seq_printf(m, " -> [%p] ", entry->class->key);  in l_show()
110 				print_name(m, entry->class);  in l_show()
111 				seq_puts(m, "\n");  in l_show()
114 		seq_puts(m, "\n");  in l_show()
117 	return 0;  in l_show()
128 static void *lc_start(struct seq_file *m, loff_t *pos)  in lc_start()  argument
130 	if (*pos < 0)  in lc_start()
133 	if (*pos == 0)  in lc_start()
139 static void *lc_next(struct seq_file *m, void *v, loff_t *pos)  in lc_next()  argument
142 	return lc_start(m, pos);  in lc_next()
145 static void lc_stop(struct seq_file *m, void *v)  in lc_stop()  argument
149 static int lc_show(struct seq_file *m, void *v)  in lc_show()  argument
155 		[0]			     = "0",  in lc_show()
164 			seq_printf(m, "(buggered) ");  in lc_show()
165 		seq_printf(m, "all lock chains:\n");  in lc_show()
166 		return 0;  in lc_show()
169 	seq_printf(m, "irq_context: %s\n", irq_strs[chain->irq_context]);  in lc_show()
171 	for (i = 0; i < chain->depth; i++) {  in lc_show()
176 		seq_printf(m, "[%p] ", class->key);  in lc_show()
177 		print_name(m, class);  in lc_show()
178 		seq_puts(m, "\n");  in lc_show()
180 	seq_puts(m, "\n");  in lc_show()
182 	return 0;  in lc_show()
193 static void lockdep_stats_debug_show(struct seq_file *m)  in lockdep_stats_debug_show()  argument
205 	seq_printf(m, " chain lookup misses:           %11llu\n",  in lockdep_stats_debug_show()
207 	seq_printf(m, " chain lookup hits:             %11llu\n",  in lockdep_stats_debug_show()
209 	seq_printf(m, " cyclic checks:                 %11llu\n",  in lockdep_stats_debug_show()
211 	seq_printf(m, " redundant checks:              %11llu\n",  in lockdep_stats_debug_show()
213 	seq_printf(m, " redundant links:               %11llu\n",  in lockdep_stats_debug_show()
215 	seq_printf(m, " find-mask forwards checks:     %11llu\n",  in lockdep_stats_debug_show()
217 	seq_printf(m, " find-mask backwards checks:    %11llu\n",  in lockdep_stats_debug_show()
220 	seq_printf(m, " hardirq on events:             %11llu\n", hi1);  in lockdep_stats_debug_show()
221 	seq_printf(m, " hardirq off events:            %11llu\n", hi2);  in lockdep_stats_debug_show()
222 	seq_printf(m, " redundant hardirq ons:         %11llu\n", hr1);  in lockdep_stats_debug_show()
223 	seq_printf(m, " redundant hardirq offs:        %11llu\n", hr2);  in lockdep_stats_debug_show()
224 	seq_printf(m, " softirq on events:             %11llu\n", si1);  in lockdep_stats_debug_show()
225 	seq_printf(m, " softirq off events:            %11llu\n", si2);  in lockdep_stats_debug_show()
226 	seq_printf(m, " redundant softirq ons:         %11llu\n", sr1);  in lockdep_stats_debug_show()
227 	seq_printf(m, " redundant softirq offs:        %11llu\n", sr2);  in lockdep_stats_debug_show()
231 static int lockdep_stats_show(struct seq_file *m, void *v)  in lockdep_stats_show()  argument
233 	unsigned long nr_unused = 0, nr_uncategorized = 0,  in lockdep_stats_show()
234 		      nr_irq_safe = 0, nr_irq_unsafe = 0,  in lockdep_stats_show()
235 		      nr_softirq_safe = 0, nr_softirq_unsafe = 0,  in lockdep_stats_show()
236 		      nr_hardirq_safe = 0, nr_hardirq_unsafe = 0,  in lockdep_stats_show()
237 		      nr_irq_read_safe = 0, nr_irq_read_unsafe = 0,  in lockdep_stats_show()
238 		      nr_softirq_read_safe = 0, nr_softirq_read_unsafe = 0,  in lockdep_stats_show()
239 		      nr_hardirq_read_safe = 0, nr_hardirq_read_unsafe = 0,  in lockdep_stats_show()
240 		      sum_forward_deps = 0;  in lockdep_stats_show()
250 		if (class->usage_mask == 0)  in lockdep_stats_show()
287 	seq_printf(m, " lock-classes:                  %11lu [max: %lu]\n",  in lockdep_stats_show()
289 	seq_printf(m, " direct dependencies:           %11lu [max: %lu]\n",  in lockdep_stats_show()
291 	seq_printf(m, " indirect dependencies:         %11lu\n",  in lockdep_stats_show()
300 	seq_printf(m, " all direct dependencies:       %11lu\n",  in lockdep_stats_show()
306 	seq_printf(m, " dependency chains:             %11lu [max: %lu]\n",  in lockdep_stats_show()
308 	seq_printf(m, " dependency chain hlocks used:  %11lu [max: %lu]\n",  in lockdep_stats_show()
312 	seq_printf(m, " dependency chain hlocks lost:  %11u\n",  in lockdep_stats_show()
317 	seq_printf(m, " in-hardirq chains:             %11u\n",  in lockdep_stats_show()
319 	seq_printf(m, " in-softirq chains:             %11u\n",  in lockdep_stats_show()
322 	seq_printf(m, " in-process chains:             %11u\n",  in lockdep_stats_show()
324 	seq_printf(m, " stack-trace entries:           %11lu [max: %lu]\n",  in lockdep_stats_show()
327 	seq_printf(m, " number of stack traces:        %11llu\n",  in lockdep_stats_show()
329 	seq_printf(m, " number of stack hash chains:   %11llu\n",  in lockdep_stats_show()
332 	seq_printf(m, " combined max dependencies:     %11u\n",  in lockdep_stats_show()
337 	seq_printf(m, " hardirq-safe locks:            %11lu\n",  in lockdep_stats_show()
339 	seq_printf(m, " hardirq-unsafe locks:          %11lu\n",  in lockdep_stats_show()
341 	seq_printf(m, " softirq-safe locks:            %11lu\n",  in lockdep_stats_show()
343 	seq_printf(m, " softirq-unsafe locks:          %11lu\n",  in lockdep_stats_show()
345 	seq_printf(m, " irq-safe locks:                %11lu\n",  in lockdep_stats_show()
347 	seq_printf(m, " irq-unsafe locks:              %11lu\n",  in lockdep_stats_show()
350 	seq_printf(m, " hardirq-read-safe locks:       %11lu\n",  in lockdep_stats_show()
352 	seq_printf(m, " hardirq-read-unsafe locks:     %11lu\n",  in lockdep_stats_show()
354 	seq_printf(m, " softirq-read-safe locks:       %11lu\n",  in lockdep_stats_show()
356 	seq_printf(m, " softirq-read-unsafe locks:     %11lu\n",  in lockdep_stats_show()
358 	seq_printf(m, " irq-read-safe locks:           %11lu\n",  in lockdep_stats_show()
360 	seq_printf(m, " irq-read-unsafe locks:         %11lu\n",  in lockdep_stats_show()
363 	seq_printf(m, " uncategorized locks:           %11lu\n",  in lockdep_stats_show()
365 	seq_printf(m, " unused locks:                  %11lu\n",  in lockdep_stats_show()
367 	seq_printf(m, " max locking depth:             %11u\n",  in lockdep_stats_show()
370 	seq_printf(m, " max bfs queue depth:           %11u\n",  in lockdep_stats_show()
373 	seq_printf(m, " max lock class index:          %11lu\n",  in lockdep_stats_show()
375 	lockdep_stats_debug_show(m);  in lockdep_stats_show()
376 	seq_printf(m, " debug_locks:                   %11u\n",  in lockdep_stats_show()
382 	seq_puts(m, "\n");  in lockdep_stats_show()
383 	seq_printf(m, " zapped classes:                %11lu\n",  in lockdep_stats_show()
386 	seq_printf(m, " zapped lock chains:            %11lu\n",  in lockdep_stats_show()
388 	seq_printf(m, " large chain blocks:            %11u\n",  in lockdep_stats_show()
391 	return 0;  in lockdep_stats_show()
420 static void seq_line(struct seq_file *m, char c, int offset, int length)  in seq_line()  argument
424 	for (i = 0; i < offset; i++)  in seq_line()
425 		seq_puts(m, " ");  in seq_line()
426 	for (i = 0; i < length; i++)  in seq_line()
427 		seq_putc(m, c);  in seq_line()
428 	seq_puts(m, "\n");  in seq_line()
441 static void seq_time(struct seq_file *m, s64 time)  in seq_time()  argument
446 	seq_printf(m, " %14s", num);  in seq_time()
449 static void seq_lock_time(struct seq_file *m, struct lock_time *lt)  in seq_lock_time()  argument
451 	seq_printf(m, "%14lu", lt->nr);  in seq_lock_time()
452 	seq_time(m, lt->min);  in seq_lock_time()
453 	seq_time(m, lt->max);  in seq_lock_time()
454 	seq_time(m, lt->total);  in seq_lock_time()
455 	seq_time(m, lt->nr ? div64_u64(lt->total, lt->nr) : 0);  in seq_lock_time()
458 static void seq_stats(struct seq_file *m, struct lock_stat_data *data)  in seq_stats()  argument
507 			seq_printf(m, "%38s-W:", name);  in seq_stats()
509 			seq_printf(m, "%40s:", name);  in seq_stats()
511 		seq_printf(m, "%14lu ", stats->bounces[bounce_contended_write]);  in seq_stats()
512 		seq_lock_time(m, &stats->write_waittime);  in seq_stats()
513 		seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_write]);  in seq_stats()
514 		seq_lock_time(m, &stats->write_holdtime);  in seq_stats()
515 		seq_puts(m, "\n");  in seq_stats()
519 		seq_printf(m, "%38s-R:", name);  in seq_stats()
520 		seq_printf(m, "%14lu ", stats->bounces[bounce_contended_read]);  in seq_stats()
521 		seq_lock_time(m, &stats->read_waittime);  in seq_stats()
522 		seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_read]);  in seq_stats()
523 		seq_lock_time(m, &stats->read_holdtime);  in seq_stats()
524 		seq_puts(m, "\n");  in seq_stats()
527 	if (stats->read_waittime.nr + stats->write_waittime.nr == 0)  in seq_stats()
533 	for (i = 0; i < LOCKSTAT_POINTS; i++) {  in seq_stats()
536 		if (class->contention_point[i] == 0)  in seq_stats()
540 			seq_line(m, '-', 40-namelen, namelen);  in seq_stats()
544 		seq_printf(m, "%40s %14lu %29s %pS\n",  in seq_stats()
548 	for (i = 0; i < LOCKSTAT_POINTS; i++) {  in seq_stats()
551 		if (class->contending_point[i] == 0)  in seq_stats()
555 			seq_line(m, '-', 40-namelen, namelen);  in seq_stats()
559 		seq_printf(m, "%40s %14lu %29s %pS\n",  in seq_stats()
564 		seq_puts(m, "\n");  in seq_stats()
565 		seq_line(m, '.', 0, 40 + 1 + 12 * (14 + 1));  in seq_stats()
566 		seq_puts(m, "\n");  in seq_stats()
570 static void seq_header(struct seq_file *m)  in seq_header()  argument
572 	seq_puts(m, "lock_stat version 0.4\n");  in seq_header()
575 		seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n");  in seq_header()
577 	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));  in seq_header()
578 	seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s %14s %14s "  in seq_header()
593 	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));  in seq_header()
594 	seq_printf(m, "\n");  in seq_header()
597 static void *ls_start(struct seq_file *m, loff_t *pos)  in ls_start()  argument
599 	struct lock_stat_seq *data = m->private;  in ls_start()
602 	if (*pos == 0)  in ls_start()
612 static void *ls_next(struct seq_file *m, void *v, loff_t *pos)  in ls_next()  argument
615 	return ls_start(m, pos);  in ls_next()
618 static void ls_stop(struct seq_file *m, void *v)  in ls_stop()  argument
622 static int ls_show(struct seq_file *m, void *v)  in ls_show()  argument
625 		seq_header(m);  in ls_show()
627 		seq_stats(m, v);  in ls_show()
629 	return 0;  in ls_show()
651 		struct seq_file *m = file->private_data;  in lock_stat_open()  local
668 		m->private = data;  in lock_stat_open()
686 		if (c != '0')  in lock_stat_write()
726 	return 0;  in lockdep_proc_init()